Automatic window screen



May 11, 1937. G. `SGRITTA AUTOMATIC WINDOW SCREEN I Filed March 50, 1955 A l JNVENTOR. l G25/DEM? SGM T74 Msi f ATTORNEYS. 1

Patented May il., i937 UNPE@ STATES PATENT @FFQE 2 Claims.

My invention relates to improvements in automatic window screens and it consists of the combinations, constructions and arrangements hereinafter described and claimed.

An object of my invention is to provide an automatic window screen in which a roll-away screen may be attached to the upper sash of a window, and a second roll-away screen attached to the lower sash of the same window whereby the raising or lowering of the two sashes into open position will unwind the screens so that the screens will cover the opening provided. If desired the screens may be detached from the window sashes and then the window can be opened in the usual manner.

Each screen is mounted upon a spring roller and has a stop or keeper secured to its free edge so that this stop will engage with the window frame when the screen is not attached to the window sash, and this will prevent the edge of the screen from disappearing into the window frame.

Novel means is provided for permitting one to gain access to either of the roll-away screens.`

in which Figure l is a section along the line I-I of Figure 2;

Figure 2 is a section along the line 2-2 of Figure 1;

Figure 3 is an enlarged sectional view of the lower screen mechanism;

Figure 4 is an enlarged sectional View of the upper screen mechanism;

Figure 51s a top plan View ofthe spring-pressed bolt; and

Figure 6 is a side elevation of Figure 5.

In carrying out my invention I make use oi a window indicated generally at I. rIhe window structure has two wells 2 for receiving weights 3 that are connected to the lower sash 4 by ropes 5 in the usual manner. An upper sash 6 is movably mounted in the window frame, and the weights for balancing this sash are not shown in the drawing.

The top rail 'I of the window frame has a piece (Cl. 15G- 39) that is removably secured in place by hinges Q and I0, see Figure 1. This piece is secured in alignment with the top rail by means of the hinges, or other suitable fastening means. The piece 8 carries the upper roll-away screen.

The detail features of the upper screen are shown in Figure 4, and it will be noted that brackets II are mounted lon the piece 8, and these brackets carry a spring-actuated roller I2 around which is wrapped a screen I3. When repairing the roller I2 or screen I3, the portion of the hinge 9 or Ill secured to the vertical side of the window frame may be freed by removing the screws securing this portion to the frame. The piece 8 may now be swung downwardly about the other hinge and will expose the roller and screen. The roller may now be removed from the brackets I I. The free edge of the screen receives a reinforcing channel Id, and this channel is secured to a stop or a keeper I5 which is Z-shaped in cross section.

It will also be noted from Figure 4 that the top rail IB of the upper` sash 6 is provided with a groove I'Ivthat is liared outwardly at I8 for receiving the lower edge of the keeper I5. The keeper I5 is removably secured to the upper'sash 6 by means of spring-pressed bolts indicated generally at I9.

Reference to Figures 5 and 6 show the detail of the spring-pressed bolts I9. Each bolt comprises a casing 20 mounted upon a base 2|, and receiving a plunger 22. A head 23 is secured -to the top of the plunger 22 and a pin 24 projects radially from the plunger. The pin is slidably received in a bayonet slot 25, and a spring 26 urges the pin 24 down to the bottom of the slot.

Two of the spring-pressed bolts I9 are secured to the top rail I 6 of the upper sash 6. The keeper I5 has openings 2'I for receiving the plunger 22, and in this manner the screen I3 is removably secured to the upper sash.

It will be noted that when it is desired to gain access to the upper screen it is merely necessary to remove the screws securing the vertical hinge portions to the frame, and then to swing the piece 8 downwardly from the top rail. This will expose the brackets I I and the spring roller I2.

The lower screen construction is shown in detail in Figure 3. A removable base 28 forms a part of the window sill 29 and is removably held in place by two straps 3i) which are secured to the base 28 and to the sill 29 by screws 3|, or other suitable fastening means. Lag screws 4I pass through the sill 29 and are threaded into the base 28. The screws may be tightened for pulling the abutting edges of the base and sill together for forming a water-tight joint. Brackets 32 are mounted on the base 28 and carry a springactuated roller 33 around which is wrapped a screen 34. The free edge of the screen is mounted in a U-shaped clamp 35, and is removably received in a recess 36 in the bottom rail 31 of the lower sash 4. The U-shaped clamp has an angular portion underlying the rail 31, and this portion projects beyond the rail 3T a slight distance, and acts as a weather strip to prevent the entrance of water beneath the lower sash.

Spring-actuated bolts I9 are used for removably securing the screen 34 to the lower sash, and since the structure of these bolts is the same as that used for the upper sash, further description need not be given, except to say that the plungers 38 of the lower spring-pressed bolts I9 are shorter in length than those used on the upper bolts. The lower bolts I9, when securing the screen 34 to the lower sash 4, will cause the screen to unwind from the roller 33 when the lower sash is raised. In this way the screen automatically covers the opening in the window as the lower sash is raised.

When it is desired not to use either of the screens the bolts I9 may be retracted and held in retracted position by the pins 24 being received in the portions 39 of the bayonet slots 25. The Z-shaped keeper I5 will prevent the upper screen from being pulled entirely within the compartment A which encloses the screen. In like manner, the portion 40 is secured to the lower screen and engages with the base 28 for preventing the lower screen from being entirely received within the compartment B housing the lower screen.

The device is extremely simple in construction, and is durable and ecient for the purpose intended. It provides a ready means for covering the window opening with a screen, and of entirely removing the screen when the window is closed.

While I have shown only the preferred form of my invention, Vit should be understood that various changes or modications may be made within the scope of the appended claims without departing from the spirit of the invention.

A wiper 42 is carried by the upper sash 6 and prevents insects from gaining entrance between the sashes when the sashes are opened.

I claim:

l. A window frame including a sill which is so embodied in the frame as to partly dene and cover a roller screen compartment, said sill having an opening which comes within the confines of the compartment, roller screen-carrying means comprising a base situated in the opening to complete the compartment but being narrower than the opening, brackets pendent from the base and a roller mounted on the brackets and having a screen wound thereon, means by which the base is attached to the sill so as to dene a slot adjacent to the room side of the sill, the free end of the screen passing through the slot, means swiveled on the weather side of the sill and detachably connected to the adjacent side of the base by which to pull the confronting edges of the sill and base into weather-tight abutment, and a sash guided by the frame to which sash the free end of the screen is attached.

2. A window frame including a sill which is so embodied in the frame as to partly dene and cover a roller screen compartment, said sill having an opening which comes within the connes of the compartment, roller screen-carrying means comprising a base situated in the opening to complete the compartment but being narrower than the opening, brackets pendent from the base and a roller mounted on the brackets and having a screen wound thereon, means by which the base is attached to the sill so as to deine a slot adjacent to the room side of the S111, the free end of the screen passing through the slot, a screw detachably swiveled on the weather side of the sill and being screw-threaded into the adjacent Side of the base, the turning of the screw pulling the confronting edges of the sill into weathertight abutment, and a sash guided by the frame to which sash the free end of the screen is attached.

GAUDEN Z SGRITTA. 

